Problem A
Islands in the Data Stream — Problem Statistics

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Submissions	2373
Accepted submissions	1269
Submission ratio	53.48%
Authors	1224
Accepted authors	1074
Author ratio	87.75%

#	User	Runtime	Language	Date
1	Mitchell Johnstone	0.26 s	APL	2023-04-02 21:18:56

#	User	Runtime	Language	Date
1	貓貓吃狗狗	0.00 s	C	2015-10-19 17:09:28
2	Anderson Palmeira	0.00 s	C	2016-06-14 20:13:56
3	Marcelo Oliveira	0.00 s	C	2016-09-18 15:59:43
4	Sam Leadi	0.00 s	C	2017-03-27 16:11:23
5	Weston Harder	0.00 s	C	2018-02-24 19:07:13
6	Bergur Snorrason	0.00 s	C	2019-07-20 01:25:28
7	pengin	0.00 s	C	2021-06-01 12:26:35
8	Gabriel Stanculescu	0.00 s	C	2024-08-31 11:42:08

#	User	Runtime	Language	Date
1	Đỗ Duy Tân	0.02 s	C#	2016-10-22 16:00:42
2	Stephen (Joe) Malone	0.02 s	C#	2018-02-24 19:24:00
3	Carter Nelson	0.02 s	C#	2018-02-24 20:32:03
4	Michael Gulliksen	0.03 s	C#	2017-01-21 11:56:36
5	Maria De La Torre Romo	0.03 s	C#	2018-02-24 19:56:12
6	Nils Lenart	0.03 s	C#	2020-04-01 09:22:03
7	Hidden user	0.03 s	C#	2022-11-17 04:58:20
8	Ahmad Barhamje	0.03 s	C#	2022-12-07 11:45:16
9	Marius Løkketangen	0.04 s	C#	2017-01-23 16:28:26

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.06 s	F#	2023-04-30 09:55:33

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2021-09-11 20:22:24

#	User	Runtime	Language	Date
1	Wilfried van Asten	0.01 s	Haskell	2015-12-01 16:04:20
2	Trinh Hoang Anh	0.01 s	Haskell	2017-10-21 04:59:52
3	Hidden user	0.02 s	Haskell	2019-11-19 15:38:02
4	Jan Hrček	0.02 s	Haskell	2021-03-21 09:26:08
5	Joshua Coward	0.02 s	Haskell	2022-01-03 04:30:03
6	Hidden user	0.02 s	Haskell	2023-05-21 21:50:08

#	User	Runtime	Language	Date
1	Đỗ Duy Tân	0.06 s	Java	2015-10-21 05:20:54
2	Samuel Klingström	0.06 s	Java	2017-06-12 22:43:34
3	Bjørn Dons	0.06 s	Java	2018-11-23 09:35:26
4	Sven Rönnbäck	0.06 s	Java	2023-11-02 17:35:54
5	Tú Huỳnh	0.07 s	Java	2015-10-21 06:16:59
6	Đức Phạm Hoài	0.07 s	Java	2018-09-20 10:27:46
7	John Ladera	0.07 s	Java	2018-11-19 03:27:48
8	Luu Nhat Phi	0.08 s	Java	2015-10-20 09:36:27
9	Mehdi Ichou	0.08 s	Java	2017-04-22 18:54:10
10	Nick Wu	0.09 s	Java	2015-10-17 20:05:58

#	User	Runtime	Language	Date
1	Kyle Senebouttarath	0.12 s	JavaScript (Node.js)	2023-04-11 18:41:24

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2016-03-24 04:24:28
2	Caullen Sasnett	0.03 s	JavaScript (SpiderMonkey)	2018-02-24 22:09:11
3	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-05-30 19:31:16
4	Peter Kedemo	0.14 s	JavaScript (SpiderMonkey)	2016-04-03 23:45:22
5	Nicklas Utgaard	0.37 s	JavaScript (SpiderMonkey)	2017-01-18 20:11:27

#	User	Runtime	Language	Date
1	Noszály Csaba	0.40 s	Julia	2025-03-11 20:05:27
2	Timothy Gaede	0.59 s	Julia	2024-05-24 08:36:56

#	User	Runtime	Language	Date
1	Danny Mittal	0.18 s	Kotlin	2020-10-22 04:58:50
2	Hidden user	0.21 s	Kotlin	2019-12-16 03:51:12
3	Johnny Baloney	0.23 s	Kotlin	2022-02-23 13:31:34
4	Phường Lên	0.24 s	Kotlin	2019-12-17 21:15:49
5	Ola Sundell	0.27 s	Kotlin	2018-09-03 14:05:22
6	Adam Rankin	0.28 s	Kotlin	2023-09-02 01:15:01
7	Neil Harmon	0.33 s	Kotlin	2019-09-27 11:54:17
8	Caden G	0.35 s	Kotlin	2019-11-25 05:45:22
9	Adam Koprowski	0.39 s	Kotlin	2020-11-28 23:25:03

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-12-12 11:37:19

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.09 s	Prolog	2016-02-23 11:01:16

#	User	Runtime	Language	Date
1	Asger Hautop Drewsen	0.05 s	Python 2	2016-04-06 00:57:20
2	Jonas Kylling	0.06 s	Python 2	2016-03-23 23:21:14
3	Marko Lazic	0.06 s	Python 2	2016-07-11 19:50:46
4	Cole Bite	0.06 s	Python 2	2017-05-22 21:04:12
5	Dustin Cook	0.06 s	Python 2	2018-06-14 11:48:38
6	Johann Ly	0.06 s	Python 2	2018-09-30 23:11:51
7	Alvaro Silvino	0.07 s	Python 2	2016-03-23 21:41:40
8	Erik Sillén	0.07 s	Python 2	2016-05-28 20:46:45
9	Seyoon Ragavan	0.07 s	Python 2	2017-11-17 22:49:25
10	Jesper Öqvist	0.07 s	Python 2	2018-10-28 17:55:47

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	Python 3	2016-08-20 16:47:15
2	James Church	0.03 s	Python 3	2017-10-26 23:34:05
3	Dalton Cole	0.03 s	Python 3	2017-10-31 02:21:34
4	Hunter Goddard	0.03 s	Python 3	2018-02-24 21:09:08
5	Yang Li	0.03 s	Python 3	2018-05-21 04:10:22
6	Hidden user	0.03 s	Python 3	2019-02-15 21:20:08
7	Will Belote	0.03 s	Python 3	2019-10-02 01:00:13
8	Cole Peterson	0.03 s	Python 3	2019-10-02 01:50:09
9	Samuel Hodges	0.03 s	Python 3	2019-10-07 05:20:10
10	Kevin Corina	0.03 s	Python 3	2019-10-08 03:50:21

#	User	Runtime	Language	Date
1	Josenildo Silva	0.06 s	Ruby	2019-03-06 14:34:16
2	Thomas Feld	0.07 s	Ruby	2023-04-13 12:21:09

#	User	Runtime	Language	Date
1	Pahlevi Fikri Auliya	0.00 s	Rust	2021-02-28 22:46:13
2	Bas Dirks	0.00 s	Rust	2022-01-25 11:24:11
3	Vincent Lagerros	0.00 s	Rust	2024-10-09 00:33:19
4	Mckinley Xie	0.00 s	Rust	2025-03-21 22:43:09

#	User	Length	Language	Date
1	Mitchell Johnstone	161	APL	2023-04-02 21:20:57

#	User	Length	Language	Date
1	pengin	478	C	2021-06-01 12:26:35
2	Gabriel Stanculescu	624	C	2024-08-31 11:42:08
3	貓貓吃狗狗	856	C	2015-10-19 17:09:28
4	Sam Leadi	967	C	2017-03-27 16:11:23
5	Anderson Palmeira	1214	C	2016-06-14 20:13:56
6	Marcelo Oliveira	1364	C	2016-09-18 15:59:43
7	Bergur Snorrason	1927	C	2019-07-20 01:25:28
8	Weston Harder	2118	C	2018-02-24 19:07:13

#	User	Length	Language	Date
1	Ahmad Barhamje	1130	C#	2022-12-07 11:45:16
2	Maria De La Torre Romo	1252	C#	2018-02-24 19:56:12
3	Marius Løkketangen	1314	C#	2017-01-23 16:28:26
4	Stephen (Joe) Malone	1338	C#	2018-02-24 19:24:00
5	Michael Gulliksen	1454	C#	2017-01-21 11:56:36
6	Carter Nelson	1497	C#	2018-02-24 20:32:03
7	Hidden user	2372	C#	2022-11-17 04:58:20
8	Đỗ Duy Tân	3215	C#	2016-10-22 16:00:42
9	Nils Lenart	6343	C#	2020-04-01 09:22:03

#	User	Length	Language	Date
1	Antonio Molina Lovett	335	C++	2016-08-11 09:19:22
2	Matthew Joseph Schallenkamp	396	C++	2019-02-16 21:11:03
3	Said Lakhfif	402	C++	2016-11-17 13:12:34
4	Frankie Lam	409	C++	2019-09-28 19:56:28
5	Daniel D'Agosta	411	C++	2024-02-05 22:06:23
6	William Gan	416	C++	2017-01-25 15:16:59
7	Herman Karlsson	420	C++	2015-10-22 23:16:07
8	人外沙耶	423	C++	2021-03-03 20:20:31
9	Anna Roczek	433	C++	2023-08-23 13:53:58
10	Markus Mathiasen	434	C++	2022-01-20 20:28:07

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	824	F#	2023-04-30 09:55:33

#	User	Length	Language	Date
1	Norbert Voelker	919	Go	2021-09-11 20:22:24

#	User	Length	Language	Date
1	Joshua Coward	446	Haskell	2022-01-03 04:30:03
2	Hidden user	726	Haskell	2023-05-21 21:50:08
3	Jan Hrček	916	Haskell	2021-03-21 09:26:08
4	Trinh Hoang Anh	2440	Haskell	2017-10-21 04:59:52
5	Wilfried van Asten	6173	Haskell	2015-12-01 16:04:20
6	Hidden user	10583	Haskell	2019-11-19 15:38:02

#	User	Length	Language	Date
1	Doug Goodman	552	Java	2018-01-12 18:43:23
2	Austin Byers	609	Java	2015-10-17 19:19:34
3	Kiên Nguyễn Tiến Trung	629	Java	2017-01-29 05:30:25
4	Benjamin Scott Pruett	656	Java	2015-10-17 19:35:22
5	Balakumaran Balasubramanian	701	Java	2019-03-04 03:56:21
6	Ali Pervaiz	702	Java	2019-03-28 00:49:57
7	Jennifer Li	723	Java	2019-10-24 06:52:16
8	Đàm Đức Duy	742	Java	2015-10-21 04:37:06
9	Eric Leow Yu Quan	774	Java	2020-12-31 12:57:49
10	Katelyn Sorensen	796	Java	2025-04-11 18:39:19

#	User	Length	Language	Date
1	Kyle Senebouttarath	2105	JavaScript (Node.js)	2023-04-11 18:41:24

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	456	JavaScript (SpiderMonkey)	2016-03-24 04:24:28
2	Christian Cederquist	639	JavaScript (SpiderMonkey)	2023-05-30 19:31:16
3	Peter Kedemo	784	JavaScript (SpiderMonkey)	2016-04-03 23:45:22
4	Nicklas Utgaard	811	JavaScript (SpiderMonkey)	2017-01-18 20:11:27
5	Caullen Sasnett	823	JavaScript (SpiderMonkey)	2018-02-24 22:09:11

#	User	Length	Language	Date
1	Noszály Csaba	184	Julia	2025-03-11 20:28:28
2	Timothy Gaede	1250	Julia	2024-05-24 08:36:56

#	User	Length	Language	Date
1	Adam Koprowski	522	Kotlin	2020-11-28 23:25:03
2	Phường Lên	792	Kotlin	2019-12-17 21:15:49
3	Caden G	794	Kotlin	2019-11-25 05:45:22
4	Johnny Baloney	958	Kotlin	2022-02-23 13:31:34
5	Danny Mittal	1015	Kotlin	2020-10-22 04:58:50
6	Adam Rankin	1125	Kotlin	2023-09-02 01:15:01
7	Neil Harmon	1209	Kotlin	2019-09-27 11:54:17
8	Hidden user	1223	Kotlin	2019-12-16 03:51:12
9	Ola Sundell	1414	Kotlin	2018-09-03 14:05:22

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1104	Pascal	2019-12-12 11:37:19

#	User	Length	Language	Date
1	Andriy Zyevakov	1312	Prolog	2016-02-23 11:01:16

#	User	Length	Language	Date
1	Thomas Feld	226	Python 2	2019-09-13 11:41:41
2	Conor McCauley	271	Python 2	2019-10-29 02:00:22
3	Lars Åström	280	Python 2	2019-09-30 15:35:08
4	Jonas Kylling	283	Python 2	2016-03-23 23:21:14
5	Asger Hautop Drewsen	284	Python 2	2016-04-06 00:57:20
6	Hidden user	288	Python 2	2019-10-22 22:03:22
7	Jesper Öqvist	291	Python 2	2018-10-28 17:55:47
8	Cole Bite	322	Python 2	2017-05-22 21:04:12
9	Johann Ly	335	Python 2	2018-09-30 23:11:51
10	Johan Lyts	336	Python 2	2019-03-26 14:09:31

#	User	Length	Language	Date
1	Clement Oh	127	Python 3	2023-08-13 18:37:24
2	Benjamin Z White	134	Python 3	2023-04-09 22:46:44
3	Farzam Abrishami	172	Python 3	2024-01-29 00:18:27
4	Peter Stauder	189	Python 3	2023-01-29 21:48:47
5	Ahmed Chamseddine	198	Python 3	2023-11-19 22:10:43
6	Weiguo Jiang	227	Python 3	2022-07-20 19:18:57
7	Hrant Hovhannisyan	237	Python 3	2025-05-02 10:51:05
8	Christian Blumenthal	237	Python 3	2023-08-27 23:54:18
9	Matthew Shank	252	Python 3	2024-02-05 23:17:07
10	Raymond Yang	259	Python 3	2022-03-20 01:32:06

#	User	Length	Language	Date
1	Thomas Feld	85	Ruby	2023-04-13 12:37:02
2	Josenildo Silva	323	Ruby	2019-03-06 14:34:16

#	User	Length	Language	Date
1	Bas Dirks	634	Rust	2022-01-25 11:24:11
2	Pahlevi Fikri Auliya	2389	Rust	2021-02-28 22:46:13
3	Mckinley Xie	3366	Rust	2025-03-21 22:43:09
4	Vincent Lagerros	16733	Rust	2024-10-09 00:33:19

Solution running time distribution